Set_data_ready_delay(), Axi3 example, Axi4 bfm – Altera Mentor Verification IP Altera Edition AMBA AXI3/4TM User Manual

Page 446

Mentor VIP AE AXI3/4 User Guide, V10.2b

426

VHDL AXI3 and AXI4 Slave BFMs
set_data_ready_delay()

September 2013

set_data_ready_delay()

This AXI3 nonblocking procedure sets the data_ready_delay field for a transaction that is

uniquely identified by the transaction_id field previously created by

create_slave_transaction()

AXI3 Example

-- Create a slave transaction. Creation returns tr_id to identify
-- the transaction.
create_slave_transaction(tr_id, bfm_index, axi_tr_if_0(bfm_index));
-- Set the write data channel WREADY delay to 3 ACLK cycles for the first
-- dataphase (beat) of the tr_id transaction.
set_data_ready_delay(3, 0, tr_id, bfm_index, axi_tr_if_0(bfm_index));
-- Set the write data channel WREADY delay to 2 ACLK cycles for the second
-- data phase (beat) of the tr_id transaction.
set_data_ready_delay(2, 1, tr_id, bfm_index, axi_tr_if_0(bfm_index));

AXI4 BFM

Note

This procedure is not supported in the AXI4 BFM API.

Prototype

set_data_ready_delay
(

data_ready_delay: in integer;
index : in integer; --optional
transaction_id : in integer;
bfm_id : in integer;
path_id : in axi_path_t; --optional
signal tr_if : inout axi_vhd_if_struct_t

);

Arguments

data_ready_delay

Write data channel array to hold WREADY delays measured in
ACLK cycles for this transaction. Default: 0.

index

(Optional) Array element number for data_ready_delay.

transaction_id

Transaction identifier. Refer to

“Overloaded Procedure

Common Arguments”

on page 203 for more details.

bfm_id